Construction of gas-generating apparatus.



J. McV. MORRIS.

CONSTRUCTION OF GAS GENERATING APPARATUS.

APPLICATION FILED AUG.25, 19w.

1,302, I 99, Patented Apr. 29, 1919.

NllTED STATES PATENT UFFTtOt JOHN MGVICKER MORRIS, OF MAYFAIR, LONDON, ENGLAND, ASSIGNOR OF TWO-THIRDS I TO TREDEGARS LIMITED, OF LONDON, ENGLAND.

CONSTRUCTION 01E GAS-GENERATING APPARATUS.

Application filed August 25, 1917.

To all whom it may concern Be it known that I, J OHN MoVicnnn Monnis, a subject of the King, of Great Britain, residing at 7 Brook street, Mayfair, in the county of London, England, have invented certain new and useful Improvements in or Relating to the Construction of Gas-Generating Apparatus, of which the following is aspecification. I

This invention relates to gas generating apparatus of the kind comprising a gas holder adapted to rise and fall in accordance with the rate of supply and consumption of the gas and to actuate a valve or stop cock for the purpose of automatically controlling the supply of gas to the said holder from a generating chamber or chambers containing a displaceable liquid medium such as water and a stationary solid medium such as carbid of calcium, the apparatus being more particulary intended for the production of acetylene for domestic lighting and other purposes.

According to this invention the generated gas is conveyed by piping having two branches extending into the gas holder from a point exteriorly thereof and each having a water-sealed cap disposed within the holder, one of said branches being also provided with a stop cock adapted to be actuated by the holder for controlling the supply of generated gas to the said holder by way of the water-sealed cap on said branch, the water-sealed cap on the other of said branches being adapted to permit excess gas to enter the holder when the said stop cock is closed.

In order that the said invention may be clearly understood and readily carried into eifect I will describe the same more fully with reference to the accompanying drawings, in which Figure 1 is a vertical section of gas generating apparatus embodying this invention, and,

Fig. 2 is a vertical section taken at right angles to Fig. 1 through the gas holder.

a is the displaceable gas holder or bell the lower part of which is immersed in liquid contained in a tank I) and serving to effect the sealing of the. said holder. 0 is the gas generating chamber which is secured to a tank 0? and is sealed at its lower part by liquid contained in the said tank d. e is the gas supply pipe leading from the generat- Specification of Letters Patent.

Patented Apr. 29, 1919).

Serial No. 188,190.

ing chamber 0 to the gas holder. a is the outlet pipe for the gas from the holder.

The said gas supply pipe 0 is arranged outside the gas holder a and provided with a branch 7 fitted with a stop cock g which is shown provided with an actuating lever h and is so disposed with respect to the gas holder a that when the latter is at or near its lowest point of travel the lever h is in its open position and rests on the top of the gas holder, thereby admitting. a supply of gas to the gas holder through the me dium of the branch f and inlet pipe 2', the gas flowing in the direction indicated by the arrows by way of a water sealed cap j appropriately supported with respect to the inlet pipe 2', for instance by means of a transversely disposed pin in on which the lower open end of the cap 9' rests. When the gas enters the holder and consequently causes it to rise, angular movement of the lever h is effected which by actuating the cock g gradually restricts the supply of gas to the holder in accordance with the rate of consumption. Further upward movement of the gas holder completely closes the cock g and moves the lever it clear of the path of movement of the gas holder but closely adjacent thereto, so that a projecting arm k, which is secured to the top of the gas holder and may be in the form of a staple as shown in Fig. 1, is adapted upon downward movement of the gas holder to engage with the lever h and restore it to its normal or open position. To prevent the lever h from being moved angularly to such an extent that the said lever would occupy a position out of the path of movement of the projecting arm 7c, the plug of the cock g may be provided with a stop pin or, as shown in Fig. 2, for the same purpose the lever k may have formed integral therewith an arm Z so as to constitute a lever of V-shape, the said arm turning with the lever it so that when the latter is clear of the top of the gas holder as shown in Fig. 2, it is prevented from moving too far in the direction of the arrow m by reason of the arm Z coming into contact with the side of the gas holder.

As the gas cock 9 1s closed by the upward movement of the gas holder a, any further gas generated is confined to the generating chamber 0 with the result that the pressure created within the said chamber forces the water away from the carbid in the basket n and so suspends generation until the downward movement of the gas holder causes the gas to be released by opening the cock 9 and permits the water again to attack the carbid. In the event, however, of excess generation of gas taking place after the cock g is closed, the pressure of the gas would force the water so far as to break the water seal of the generator and cause gas to escape. To prevent this occurring the gas supply pipe from the generator is provided with a second branch 29 disposed outside the gas holder and leading thereto through the medium 01 an inlet pipe g and cap 1 which on account of the depth of immersion of the said cap 1' within the water contained in the tank 6, are so water sealed that the pres sure requisite to force the gas (the direction of flow of which is indicated by the arrows in Fig. 1) into the gas holder is greater than that required to force the water back from the carbid in the generator but less than that which would cause the water seal in the generator to be broken. By this means gas due to after generation is passed into and collected by the gas holder although the principal inlet thereto may be closed by the cock 9. The displacement of the water within the generator when working at low and high pressure is indicated by full and dotted lines, respectively, in Fig. 1.

A branch 8 leading to a drain cock may be connected to each of the gas inlet pipes 2', g and the gas outlet pipe at. The pipe shown broken away at the upper left hand side of Fig. 1 may be connected to a second generator. The generator or each generator, instead of being disposed alongside the gas holder, as shown, may be arranged beneath the latter or in any other appropriate manner relatively thereto. 7,

WVhat I claim and desire to secure by Letters Patent of the United States is 1. In a gas generating apparatus of liquid Copies of this patent may be obtained for five cents each, by addressing Washington, D. 0. W-

displacement type, the combination of a gas holder adapted to rise and fall, a gas supply pipe leading from the gas generator and provided with two branches extending into the holder, each of said branches being connectedexteriorly of the holder to said gas supply pipe, water-sealed caps disposed within the holder one on each of said branches, and a stop cock disposed exteriorly of the holder on one of said branches adapted to be actuated by said holder for controlling the supply of gas thereto by way of the water-sealed cap on the last named branch, the water-sealed cap on the other of said branches being adapted to permit excess gas to enter the holder when said stop cock is closed. Y

2. In a gas generating apparatus of liquid displacement type, the combination of a gas holder adapted to rise and fall, a member projecting from said holder, a gas supply pipe leading from the gas generator and provided with two branches extending into the holder, each of said branches being connected exteriorly of the holder to said gas supply pipe, water-sealed caps disposed within the holder one on each of said branches, a stop cock disposed exterior-1y of the holder on one of said branches for controlling the supply of gas to said holder by way of the water-sealed cap on the last named branch, the water-sealed cap on the other of said branches being adapted to permit excess gas to enter the holder when said stop cock is closed, a lever for operating said stop cock, said lever being adapted'to be actuated directly by said holder during its upward movement and to be actuated during the downward movement of said holder by the member projecting therefrom, and an arm associated with said lever and adapted to make contact with the holder for preventing the lever from being shifted out of the path of movement of said member.

JOHN MoVICKER MORRIS.

the Commissioner of Patents, 

